Sheet-feeding machine.



PATBNTED MAY.21, 1907.

TSNO. 854,088.

11. ALLSTRBAM. SHEET FEBDING MAGHINE.. APPLIOTIOF FILED' 00T. 19,1904.

3 SHEETS--SHEZ'T I.

'17a/www PATENT@ MM 21, 19o-.7. H. HALLSTREAM.

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w Sw ,diIJ-EE! u .r

H. HALLSTREAM.

PATBNTED MAY 21, 1907.

3 SHEBTS*SHEET v3.

UNiTnD-'srarns PATENT oFFIo/n.A

IIENNING IIALLSTREAM, OF EAST BRIDGEWATER, MASSACHUSETTS', AS-- SIGNOR TO AMERICAN PAPER FEEDER COMPANY7 CHUSETTS, A CORPORATION A*OF MAINE.

BOSTON, MASSA- sH-EE'T-F'EED'ING. MACHINE.

Specicaton of Lett'ers Patent.

Patented May 21, 1907.

ippucaitn sied october-19, 1904. stanno. 229.079,.

To al full/m it may concern):

Be it known that I, HENNING'HALLSTREAM, of East Bridgewater, in the county of Plymouth and State of Massachusetts,have invented certain new and .useful Improvements in Sheet-Feeding Machines, .of which? the followingfisa specification.

The present invention relates to improvements in sheet feeding mechanism for lconveying sheets in succession from :an auto-y matic feeding mechanism to a printing /press or other machine for actingupon or manipulating the sheets.

It 1s frequently desirable 1n feeding sheets in succession to machines to advance thev sheets into position to be acted upon Iat a high rate of speed and a't the sametlme to leave the sheets accurately in position.. For

instance in feeding sheets to the front gages of a printing press running at'high speed itis necessary to advance the sheets to the front gages at a high rate of speed y1n order that the side register devices may have time to operate before `the sheet is seized bythe grippers of the press;4 If the sheet'sare brought against the front gages at full speed and Athe gages.

" are relied upon to arrest the sheet'in the proper position; ithasgbeen found that either the front edge ofthe sheet will be crumpled and injured or the sheet will bound away' from the front gages and notbe properly registered against them, andY various mechanism and devices .have vbeen devised for slowing'` down the sheets as they are presented against.

the front gages.

Certain features ofthe present invention relate to a novel construction and arrangement of slow-downv devices which-will enable the sheets to beadvanced ata high rate of' sired position and are' then gradually. re-

tarded as the rear part'ofthe sheet passes between them so as togradually. slow down patent` The sheets separated from the ile on the table A are advanced by the rolls 'C' and by la series of tapes D extending from the rollCf the sheet without changing its alinement` just previous to the release of the sheet from the action of the conveying surfaces.

Further features of invention relate to the construction and arrangement of delivery devices which may be readily applied to the feed boards of existing presses for conveying sheets from va sheet se arating mechanism arranged at the rear o the feed board and lwhich may be readily thrown out of position above the feed boardwhen'it is desired to gain access to the sheet delivery or other devices located under the feedfboard,

The various features of vinvention will be understood from the following detailed description ofthe feeding mechanism vshown in the accompanying 'drawings which embodies all the features in the formin which I prefer to employ them.

In these drawings Figures'y 1, /and 3 show aside .elevation of the feeding mechanism. Fig. 4 is a plan view of that part of the mechamsm shown in Fig. 2. F1 5 is a vertical sectional view on line 5-5 ig. 4. Fig. 6 is a sectional view on line 6 6 Flg. 2.

In the machine shown in the drawingsthe sheets to be fed are supported upon a vertically movin(r tableA which presents,the top of the pile of sheets to combing devices ndlcated at B-by which the top sheets are, separated and fed to delivery rolls C. C. vThe sheet separating mechanism .and the means fory controlling 1t so as to present Iinc'zlividual.

sheets in succession to the delivery rolls C C may be ofanysuitable construction such for instance a'srV .)wn in Patent #690,702J anu.-

.ary 7, 1902-,I and the upper delivery rollsC may be moved into and out ofiengagement .with the lower vdelivery roll C at, proper intervals asin the construction shown 1n said aroundta-second tape rollsor drum CZK. The

tape drum Czis mounted in brackets E secured atithe front ends'of barsE which .are

pivotedv at E? tothe side frames of the feeder. The brackets E areconnected bytie rods E3 andthe brackets,4 tie rods, and ba s E"f.0rn 1 a pivoted frame 'for supporting certain )arts of the sheet .feeding mec a'nis'm.

`h'is 1eme'. .is supported m position above the feed-board fos.

plate F secured to the front end of the 'feedboard F, the bars bein their upper surfaces are' ush with and form. a continuation of theupper 'surface of sa-idj4 -edin arms c pivoted to lugs c depending F of the pressby feet E'i eictending down-4 ward from the brackets E and resting upon theieed board. v The sheets as they are carried alongby the' ta es D pass between the drum C2 and presser"` ro ls C3 arranged to bear upon the sheets above the drum C2 and insure their onward movement. The presser rolls C3 are mountfrom collars. cwhich are'adjustably secu u on a rod E5 connecting the brackets* he rear ends of the arms c extend beyond the lu 's c andarecurved upward as indi# cated 1n Fig. 5 to insureI the passage of the' front edge of the sheet. By adjusting`- the collars c2v on the rod E5 the'rolls'C3-n1ay be brought into .the desired. position with rela*- tion t'othe'tapes D.

The tapes D deliver the sheets onto a series' driven 'at the saine speed as-the tapes so thatl the sheet is rapidly' and contmuously ad.

vanced A s the rear art of the'sheet passes between the rolls I,

the s eed of the .roll I is gradually retarded so .t at the sheet is slowed down as-its rearedg'ey asses from be-V tween the deliveryrolls and t e sheet isthus brought into accurate position against the front gages.

The supporting bars Gand the delivery -rolls H, I'are mounted in aframe; the rear end of 'which'is pivoted to' the brackets E and the'.

front endof which i's,support'ed upon boltsA which restuponthe feed board F so that the frame may be swung back to 'give accessto the front end of the'ffeed boar y and 'the de'- vic'es lo'catedun'der it.` This pivote'd frame` is composed of'si'de bars K provided' with brackets'K2,l K3 at'thei'r opposite endswhich are connected bycross-ro'ds 'K2 K5. The brackets- K2 arepivoted upon' a' cross-rod El* connecting 'the' brackets E; .The supportin" bars' Gare secured upon the cross-rod Krt an their front' ends rest uporrtherearend of al plate.

gages vby any. suitable1 'driving :imechanism I referhqvv'ever,5 to' -eiiect the slowing down o thezfdelivery rollsby connecting the drivenv` delivery Iroll with g its driving gear by Ameans so arranged thati The rvolls"I"-may' be driven at a-cons'tantE high rate of'spe'ed` during the major portion" of the travel of" the? sheet' betweenl the roller' H andi and then-graduatly'slowed do'wn'asv the sheet 'comesfintoj positio'n at= :the 'fr'ont'i Vof intermliategearing which may be moved inthe'directionof 'movement of the driving gesti-vat# the proper vtime so as to modify the motion transmitted' from the driving gear to theroller,-ll

In order to eieet the retardation of the delivery-rollers-in as short 'a' time and with as little movement of .the movable part of the gearing as-is practicable,I,alsoprefer'to inf -tr'o uce th'e movable gearing between the drivin' 'gear'and a driven gear which is con. necte ,with the delivery rolls, and to so construct andi arrange the' gearing that'- the driven gear is rota-tedvin the opposite direction from the driving gear by the intermediateI gearing.

-A simple I and eflieient formV ofgearing em'- "I bodyin both of these features which Izprefer to emp oy .in driving the-,delivery rol'ls,+is'l shown in the drawings, more partlcularlyinv Figs. 2, 4 and 6. As shown. 1n these views the tape drum C2 is -provided at one end with a pinionfi which engages a gear i 'to which is secured a bevel gear t2. This bevel gear 'i2 forms the driving gear for transmitting motio'ir to the driven roll I of the delivery rolls. Thefconnected gears t', i2 are loosely mounted on a sleeve i3 secured in one ofthe brackets E. The driven gear which is connected With the roller I is a bevel' gear i4 arranged in front of the' gear 'i2 and connected tobe driven' therefrom and in the opposite direction by an` intermediate bevel pinion i5. The interme# diate' gearing between the driving gear i? and the.' driven gear i, which in this construction lcol'islsts---of'the pinion t5, is mounted tupon a carrier t pivoted upon the' shaft i? to which the geari4 is secured sothat the carrier may'. swlng about the axes' of the' gears i2 and '17.

The movements of the carrier al are effected by means of a camis securedto a continu-.

ously running cam shaftfi and en aging one en'd'of a bell-crank lever il", the ot er endv of IOO' Whichis'connected by a rod '5.1.1 with the' cary riez'.v The lever il is held in' engagement. Withthe cam by means of a spring t, While the lever '111 rides on the. concentric part of.-

the'- cam is the carrier t remains stationary and the' gear@4 is driven at'the same speed as f the roll ear t2.-

Duringthis time therefore the is'driven at a constant speed and theV gearing between the drum Czand-theroll I is j' so roportioned thatl the surface speed of the'I rol 4is 'the' same as the .surface speed of the tapes D'W-hich pass over the drum E, Whenthe' end ofthe lever 6.1.0 passes from the .high

part of the cam 'i8 to the low art, the-carrier t isi moved about-the axis of t e' gear t? inthe f direction of the' rotation of .said gear thus counteractingthe actiono the ear i upon. the' pinion 'i5 so that the s 'pinion 'i5' isz "moved at .thesame speed'at k'Whi'clfl the gear't2 is traveling, `the rotation of` the pinion L5 upon itsaxis `would be' stopped.-

ed o rotation-off g l the pinion if' is reduced; Aor instance `if the rotation-of the, gear 'i2 and at half the speed By thus A a sim le connection between the carrier and .3o

gear @12 which engagesl a gear i loosely i the shaft 'im by means of spiral gears 17. one .of which is splined to slide upon the shaft il By slidingv the carriages I on the rods K the position. of the delivery rolls may -be'varied under side of the-bars K. the yadjustmont of effect of the movement -is doubled. `For in- -If .it is desired to stop the-roll i5 therefore, the

delivery rolls I are yso arranged and conrolls towardand away from the front gages back .of the front frame when it is desired t'o framer swings. formed integral With a spiral gear i which 45 i which carries the delivery rolls.

in unison by forming pinions on the cross When the pinion i5 is moved in the direction of rotation of the gear i2 it is also moved in a direction oppositeto. the rotation of. the driven gear i4 and as the gear L4 is driven through the pinion if this movement tends to slow down the gear i4. By arranging the pinion i5 between a driving and a driven gear moving in opposite directions'and `moving the pinion about the axes of these gears, the

stance,y if the inion fif'" were moved at the rateat which t e gear i2 is traveling, the pinion would have no rotation upon its axis and would therefore carry the gear i4' -with it in the same direction in which the pinion moves'w and at the same speed, or in other words this movement of the pinion would cause the gear "i4 to be rotatedinfthe opposite direction to its normal movement and at the same speed.

carrier i should be moved in the direction of at which said gearyis traveling. I multiplying the efect'pro'duced by the movement of the swinging carrier and intermediate gearin carried thereby, Athe roller- I may be rapi ly retardedand in a short space of time. This feature also enables the use of cam s aft and the the cam shaft. I

The connection between the gear i4 and the use of a small cam upon structedfas-to permit the adjustment of the and so as net ,to interfere with the swinging get at the Ifrontofthe feed board.` The shaft c7 to which the gear if is secured extends through the sleeve i3 and is provided with a mounted on the bar E6 about which the front The gear-i13 is secured to or enga es a similar gear i secured to a shaft il whiclgr extends parallel to the side bars K of the front frame.` The roller VI is driven from and theV other of which is secured to the shaft In order that the rolls I, H may' be adjust- 'ed toward or away from the-front gages so as to be in proper relation thereto for she'ets of different length, these rolls are mounted 'in carriaes I adjustably mounted on the side bars. and connected by a rod or lshaft I2.

as desired. The carriages may he adjusted shaft I2 to engage rack teeth formed on the Ythe carriagesbeing elfected by'turning the shaft and the carri` being held in adjusted position by frictionor anysuitable.clamp-- ing device.

The rolls H are pressure rolls driven i frictional engagementwith the rollsI or 'with the sheets passing between them and these .rolls are mounted in arms H pivoted to lugs.

H2 depending from collars H3 secured to'av cross. rod I34 connectin the brackets I. What I-claim and r esire to secure by Letters Patent is I i 1. The combination of sheet conveying surfaces, mechanism for driving saldsurfaces at a substantially constant speed during the major part of their action on v'the sheet and then gradualhT retarding said speed just pre-V vious to the release ofthe sheet by said sur faces. 2. The combination of'sheet conveying surfaces, traveling sheet conveyers deliver'-` ing sheets to saidsurfaces, mechanism for' driving said .surfaces `at the speed of the traveling conveyers during the major part of their' action on the sheet and then gradually retarding said surfaces as the sheet passes between them. 1 3. The combination of traveling tapes fo conveying sheets, delivery rolls to which said .tapes deliver the sheets, mechanism for driving said rolls at the speed of the tapes and gradually retarding said rolls as the rear of the sheet passes between them.

conveying sheets, delivery rolls to which said tapes deliver the sheets, front gages, mechanism for rotating said rolls at the speed of theY tapes to bring the sheets near the ront gages and then gradually retarding said rolls.

5. The combination of front gages, sheet conveying surfaces for delivering sheets to the front gages, mechanism for driving `said surfacesv at a substantially constant speed during-the major part of their action on the sheet and then gradually retarding them as lsubstantially constant speed during the major part of their action on thevsheet and -for gradually retarding them during. their action upon the rear end. of 'the sheet.

8. The combination of front gages, sheet conveyingsurfaces .for delivering sheets to the gages, rearing through which motion is transmitter' to said surfaces, a driving member moving at a uniform speed, and mechanism for causing a relative -movement berear of the 4J The combination of traveling tapes for- IOO IIO

tween the driver and gearing asl the sheet comes to the front gages.l g

9. lThe combination of 'front gages, sheet conveying surfaces for delivering sheetsto the gages, a driving member rotating at a uniform speed, gearing through which mtion is transmitted to said surfaces, and

mechanism `for intermittently -moving said gearing in the direction of rotation of the driving member to slow down the conveying surfaces as the sheet comes to the front gages.

10. vThe combination of front gages, sheet conveying surfaces for delivering sheets to movable gear engaging the (irivlrig gear, and

mechanism for moving said gear about the axis of the driving gear to slow down the conveying surfaces as the sheet comes to the front gages.

. 12. The combination of sheet conveying surfaces, a gear' connected to transmit motion thereto, a pinion driving said gear and movable about the axis thereof, and mechanism for intermittently moving said pinion'about the axis of said gear to slow downthe conveying surfaces at intervals;

13. .The combination .of front gages, sheet conveying surfaces for delivering sheets to the gages, a driving gear, a pinion engaging the same and movable about 1the axis of the s54,oss

gear,y connections :between the'j pinion and conveying surfaces for transmittingmotion I thereto, and mechanism 4for moving said pinf ion about the axis of the gear toslow down the conveying surfaces as the sheet comes to .the front gages.

14. The combination of sheet'conveying surfaces, a driving gear, a driven gear connectedwith the surfaces to transmit motion thereto, intermediate gearing rotating they driven gear in a reverse direction,-and mechanism forv intermittently moving said intermediate gear about the axis of the gears to slow down the conveying surfaces at intervals. V

15.l The combination of sheet conveying surfaces, a gear i4 connected therewith, a driving gear i2, a pinion i5 connecting'said gears, and -mechanism for intermittent-ly swinging'said pinion about the axis' of said gears.

16. The combination of sheet separating mechanism, a pivoted conveyer frame, con-- veyer tapes mounted therein, a front frame pivoted to the front end of said conveyer `frame, delivery rolls carried bythe front frame, gearing for driving said rolls comprising a gear concentric with the pivot of a front frame. i

17. The combination of sheet separating mechanism, a pivoted conveyer -frame, conveyer tapes mounted therein, a front frame pivoted to the front end ofv said conveyor' `frame, delivery rolls carried by the front frame and adjustable longitudinall thereof, and mechanism for driving said rolls.

In testimonyWhereof I havevafiixed my signature, in presence of;tWo Witnesses.

HENN ING HALLSTREAM.

Witnesses:

JOSEPH A. BQWMAN," FRANors A. HAMMOND. 

